"We're focused on the substance, not the timetable".
But they caution the window is closing and Canada's time may be running out.
The Trump administration had threatened to proceed with a Mexico-only trade pact as USA talks with Canada foundered in recent weeks amid deep differences over Canada's support for its dairy market and a mechanism for settling trade disputes.
In the United States, Congress must have the text of the deal by Sunday if a 60-day review period is to be respected.
The United States and Mexico want to push their deal through their respective legislatures before Mexican President-elect Andres Manuel Lopez Obrador takes office on December 1.
But the ensuing talks to incorporate Canada have stumbled. Or perhaps correction of the imbalance of trade that already favours the United States?
Among other things, the negotiators are battling over Canada's high dairy tariffs.
"I'm hopeful Canada stays at the table - there's strong support for three countries seamlessly working together", Brady said on Friday. In 2004, the Dominican Republic signed a Central American trade deal three months after the US and several of its neighbors signed.
Under U.S. trade law, an agreement must be published for 60 days before it can be signed by leaders of any of the participant countries, putting negotiators on the clock to reach a deal that can be signed by November 30, Pena Nieto's final day in office.
That comes as no surprise to trade experts. Canada also wants to keep a NAFTA dispute-resolution process that the USA wants to jettison. "There's a potential landing strip in all of the negotiated areas".
Buckeye defense bent, but didn't break against Penn State
Penn State never would have had a chance to pick up that second first down had it not gotten the original pass interference call. The Lions held Ohio State, which had been averaging 54.5 points and 599 yards, to 14 points until the fourth quarter.
"That means the negotiations aren't over yet", he said.
"They should have seen the text by now as part of earlier negotiations, as well as more recent bilateral negotiations", she said.
Rather than giving away the farm, literally, to quench Donald Trump's insatiable ego and meet his artificial deadlines, perhaps Canada should hold out for the Mueller Report, leading to the expectation of a more rational American head of state in the White House.
President-elect Andres Manuel Lopez Obrador said Prime Minister Justin Trudeau asked him during a Thursday phone call "to intervene and call on the US government to reach an agreement" with Canada on the renegotiation of the North American Free Trade Agreement.
"The notion of countries signing a trade agreement at different times is not new", said Lori Wallach, head of Public Citizen's Global Trade Watch.
"Canada is very close to getting a deal, but wants assurances from the United States that they're not going to place tariffs on them going forward", he said, calling demand for protection from future duties as "awfully reasonable".
According to a readout of the call from the Prime Minister's Office, the two men "agreed to work closely together to further strengthen the dynamic partnership between Canada and Mexico", and "discussed NAFTA and the mutually beneficial economic and trading relationship between our two countries".
The U.S. exported more goods to Canada past year than to China, Japan and Germany combined.
"The Americans are finding that the negotiations are tough because Canadians are tough negotiators, as we should be", he said. "A good and fair deal is still very possible".
"That's going to make it very hard to sell a deal at home".